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STOCKHOLDERS' EQUITY (Details 5) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 item | Dec. 31, 2012
STOCKHOLDERS' EQUITY |  |
Shares that were available for issuance | 16,207,250 | 13,557,771
Purchase Plan |  |
STOCKHOLDERS' EQUITY |  |
Shares of common stock reserved for issuance | 1,200,000 |
Shares issued under plan | 936,596 | 843,610
Shares that were available for issuance | 263,404 |
Maximum percentage of annual salary that can be withheld | 10.00% |
Maximum duration of offering period | 12 months |
Number of offering periods in which an employee can participate at a time | 1 |
Number of consecutive purchase periods in an offering period | 2 |
Duration of the purchase period | 6 months |
Percentage applied to common stock market value in calculating purchase price under purchase plan | 85.00% |
Duration of the new offering period | 12 months |
Period for which shares must be held after purchase under the Purchase Plan before being eligible to be traded | 1 year |

X
- Definition Represents the duration of new offering period in a case where the fair market value of common stock on the purchase date is less than the fair market value at the beginning of the offering period. + References No definition available. + Details
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- Definition Represents the duration of the purchase period under the employee stock purchase plan. + References No definition available. + Details
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- Definition Represents the maximum duration of the offering period under the employee stock purchase plan. + References No definition available. + Details
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- Definition Represents the number of offering periods in which an employee can participate at a time in the purchase plan. + References No definition available. + Details
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- Definition Represents the maximum percentage of annual salary that an employee can choose to have withheld to purchase common stock under the purchase plan. + References No definition available. + Details
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- Definition Represents the number of consecutive purchase periods in an offering period in the purchase plan. + References No definition available. + Details
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- Definition Represents the holding period from the date of purchase under the Purchase Plan before shares may be traded. + References No definition available. + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Purchase price of common stock expressed as a percentage of its fair value. + References No definition available. + Details
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- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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